package jdbc;

import java.sql.*;

public class JDBCDemo8 {
    public static void main(String[] args) {
        try(
                Connection con=DBUtil.getConnection();
                ) {
            String sql ="SELECT username,password,nickname,age " +
                        "FROM userinfo " +
                        "WHERE username=? AND password=?";
            PreparedStatement ps=con.prepareStatement(sql);
            ps.setString(1, "张三");
            ps.setString(2, "123456");
            ResultSet rs=ps.executeQuery();
            if (rs.next()){
                System.out.println("登录成功");
            }else{
                System.out.println("登录失败");
            }

        } catch (SQLException e) {
            e.printStackTrace();
        }

    }
}
